Improvement in joints for railway rails



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Letters Patent No. 111,006, dated lanuary 17, 1871.

IMPROVEMENT. m JOINTS FOR RAI WAY RAILS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whontit may concern:

Be itlmown that I, \VILLIAM W.1tonrxson,'of Rlp0ll,l11 thecounty ot' Fond du Lac and State of \Visconsin, have invented certain new and useful Iin proven'ients in Joint Splice for Railroad Rails; and I do hereby declare the iollowii-ig to be a full, clear, and

exact description of the same, reference being bad to the accompanying drawing forming part of this specification, in which- 7 1 Figure l is a side elevation of my improved jointsplice applied to a rail;

Figure 2- is a vertical longitudinal section of the splice and rail; and

Figure 3 is a transverse section of t-he same.

Similar letters of reference in the drawing indicate corresponding parts.

My invent-ion has for its object to unite the ends of railroad rails in such a manner asto provide for the expansion and contraction of the rails under the inilnenee of heat and cold, and at the same time cause the ends to move uniformly under the-weight of passing trains and, to this end' The invention consists in )rovidin the )roximatc ends of therails: with recesses, and inserting therein a flat metal block, fish-plates being employed upon opposite sides of the rails, the bolts of which pass through the rails between-the ends of the recesses 'and the ends of the block, as will he hereinafter more fully described.

In {the accompanying drawing-- 1X At ZUL. the rails of arailroad, provided each at theirproximate ends wfitluan oblong horizontal reeess, B.

C is a flat block of metal, placed within the united recesses, and extending an equal distance within each rail. This block serves to connect the rails against vertical displacement, and causes them to move uni tormly under the weight of passing trains.

The block 0 is of greater width than the web of the rails, and its projecting edges upon each side of the rails enter longitudinal grooves formed in the in -ner faces of the fish-plates D.

These plates are united to each other through the rails by means of the bolts E and nuts F, and serve notonly to connect the rails against longitudinal displacement, but also to prevent the block 0 from slipping out of place.

The inner ends of the recesses B are provided with shoulders 9, against which thebolts bea-r, topre'vent then'ails from being separated.

It will be observed that the block 0 is somewhat shorter than the united lengths of the two recesses B, and that thc bolts F do not fit the inner ends of such recesses with close contact.

The spaces thus left afford the necessary rhoin for expansion andcontraction of the rails, and, owing to the arrangement of the grooves in the fish-plates, the

longitudinal movement of the rails under difi'erent temperatures does not ail'ect the metal block 0 to bind or cramp the same.

Having; thus described my invention,

\Vhat I claim as new therein, and desire to secure by Letters Patent, is-

1. A rail-splice, consisting of the block Gin the recesses of the rails, of fish-bars and bolts, when the -holts pass through enlarged openings at the ends of the block 0, as set forth.

2. In combination with the recessed rails, the bloclt O, grooved fish-plate D, and the bolts E, substantially as described, for the purpose specified.

The'ahove specification of my invention signed by me this day of August, 1870.

WILLIAM W. ROBINSON. \Vitnesses Geo. L. FIELD, Enwn. BROCKWAY.

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